android: the handoff — the pending rounds, the pipeline, and what is unverified

Everything written this session that has not been through the device: rounds 43
to 48 (each patch adversarially verified, 43's transient-notice expectation
fixed), a partial round 49, the pipeline scripts, the Android Auto design and
the icon comparison mock. Also the two harness changes that were never A/B'd —
adaptive waits, which may only shorten a declared wait and never lengthen it,
and a ship that runs the mock walk and the deploy at the same time. The A/B and
its 255-step baseline are in handoff/tools; main stays at what the phone has
actually walked.

handoff/tools/reset-tree.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+# Put the repo back to HEAD after a failed ship. `git checkout --` restores
+# tracked files but leaves behind any NEW file the round created, which then
+# trips that round's own second-run guard on the retry.
+set -u
+cd /f/Coding/SoulStream || exit 1
+git checkout -- .
+git clean -fd src tests crates src-tauri   # no -x: ignored build output stays
+git status --porcelain | head
+echo "tree: $(git status --porcelain | wc -l) changed (0 = clean)"